2 * VP9 compatible video decoder
4 * Copyright (C) 2013 Ronald S. Bultje <rsbultje gmail com>
5 * Copyright (C) 2013 Clément Bœsch <u pkh me>
7 * This file is part of FFmpeg.
9 * FFmpeg is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
14 * FFmpeg is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with FFmpeg; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
24 #include "libavutil/avassert.h"
34 static av_always_inline void setctx_2d(uint8_t *ptr, int w, int h,
35 ptrdiff_t stride, int v)
53 uint32_t v32 = v * 0x01010101;
62 uint64_t v64 = v * 0x0101010101010101ULL;
68 uint32_t v32 = v * 0x01010101;
71 AV_WN32A(ptr + 4, v32);
80 static void decode_mode(AVCodecContext *avctx)
82 static const uint8_t left_ctx[N_BS_SIZES] = {
83 0x0, 0x8, 0x0, 0x8, 0xc, 0x8, 0xc, 0xe, 0xc, 0xe, 0xf, 0xe, 0xf
85 static const uint8_t above_ctx[N_BS_SIZES] = {
86 0x0, 0x0, 0x8, 0x8, 0x8, 0xc, 0xc, 0xc, 0xe, 0xe, 0xe, 0xf, 0xf
88 static const uint8_t max_tx_for_bl_bp[N_BS_SIZES] = {
89 TX_32X32, TX_32X32, TX_32X32, TX_32X32, TX_16X16, TX_16X16,
90 TX_16X16, TX_8X8, TX_8X8, TX_8X8, TX_4X4, TX_4X4, TX_4X4
92 VP9Context *s = avctx->priv_data;
94 int row = s->row, col = s->col, row7 = s->row7;
95 enum TxfmMode max_tx = max_tx_for_bl_bp[b->bs];
96 int bw4 = ff_vp9_bwh_tab[1][b->bs][0], w4 = FFMIN(s->cols - col, bw4);
97 int bh4 = ff_vp9_bwh_tab[1][b->bs][1], h4 = FFMIN(s->rows - row, bh4), y;
98 int have_a = row > 0, have_l = col > s->tile_col_start;
101 if (!s->s.h.segmentation.enabled) {
103 } else if (s->s.h.keyframe || s->s.h.intraonly) {
104 b->seg_id = !s->s.h.segmentation.update_map ? 0 :
105 vp8_rac_get_tree(&s->c, ff_vp9_segmentation_tree, s->s.h.segmentation.prob);
106 } else if (!s->s.h.segmentation.update_map ||
107 (s->s.h.segmentation.temporal &&
108 vp56_rac_get_prob_branchy(&s->c,
109 s->s.h.segmentation.pred_prob[s->above_segpred_ctx[col] +
110 s->left_segpred_ctx[row7]]))) {
111 if (!s->s.h.errorres && s->s.frames[REF_FRAME_SEGMAP].segmentation_map) {
113 uint8_t *refsegmap = s->s.frames[REF_FRAME_SEGMAP].segmentation_map;
115 if (!s->s.frames[REF_FRAME_SEGMAP].uses_2pass)
116 ff_thread_await_progress(&s->s.frames[REF_FRAME_SEGMAP].tf, row >> 3, 0);
117 for (y = 0; y < h4; y++) {
118 int idx_base = (y + row) * 8 * s->sb_cols + col;
119 for (x = 0; x < w4; x++)
120 pred = FFMIN(pred, refsegmap[idx_base + x]);
122 av_assert1(pred < 8);
128 memset(&s->above_segpred_ctx[col], 1, w4);
129 memset(&s->left_segpred_ctx[row7], 1, h4);
131 b->seg_id = vp8_rac_get_tree(&s->c, ff_vp9_segmentation_tree,
132 s->s.h.segmentation.prob);
134 memset(&s->above_segpred_ctx[col], 0, w4);
135 memset(&s->left_segpred_ctx[row7], 0, h4);
137 if (s->s.h.segmentation.enabled &&
138 (s->s.h.segmentation.update_map || s->s.h.keyframe || s->s.h.intraonly)) {
139 setctx_2d(&s->s.frames[CUR_FRAME].segmentation_map[row * 8 * s->sb_cols + col],
140 bw4, bh4, 8 * s->sb_cols, b->seg_id);
143 b->skip = s->s.h.segmentation.enabled &&
144 s->s.h.segmentation.feat[b->seg_id].skip_enabled;
146 int c = s->left_skip_ctx[row7] + s->above_skip_ctx[col];
147 b->skip = vp56_rac_get_prob(&s->c, s->prob.p.skip[c]);
148 s->counts.skip[c][b->skip]++;
151 if (s->s.h.keyframe || s->s.h.intraonly) {
153 } else if (s->s.h.segmentation.enabled && s->s.h.segmentation.feat[b->seg_id].ref_enabled) {
154 b->intra = !s->s.h.segmentation.feat[b->seg_id].ref_val;
158 if (have_a && have_l) {
159 c = s->above_intra_ctx[col] + s->left_intra_ctx[row7];
162 c = have_a ? 2 * s->above_intra_ctx[col] :
163 have_l ? 2 * s->left_intra_ctx[row7] : 0;
165 bit = vp56_rac_get_prob(&s->c, s->prob.p.intra[c]);
166 s->counts.intra[c][bit]++;
170 if ((b->intra || !b->skip) && s->s.h.txfmmode == TX_SWITCHABLE) {
174 c = (s->above_skip_ctx[col] ? max_tx :
175 s->above_txfm_ctx[col]) +
176 (s->left_skip_ctx[row7] ? max_tx :
177 s->left_txfm_ctx[row7]) > max_tx;
179 c = s->above_skip_ctx[col] ? 1 :
180 (s->above_txfm_ctx[col] * 2 > max_tx);
183 c = s->left_skip_ctx[row7] ? 1 :
184 (s->left_txfm_ctx[row7] * 2 > max_tx);
190 b->tx = vp56_rac_get_prob(&s->c, s->prob.p.tx32p[c][0]);
192 b->tx += vp56_rac_get_prob(&s->c, s->prob.p.tx32p[c][1]);
194 b->tx += vp56_rac_get_prob(&s->c, s->prob.p.tx32p[c][2]);
196 s->counts.tx32p[c][b->tx]++;
199 b->tx = vp56_rac_get_prob(&s->c, s->prob.p.tx16p[c][0]);
201 b->tx += vp56_rac_get_prob(&s->c, s->prob.p.tx16p[c][1]);
202 s->counts.tx16p[c][b->tx]++;
205 b->tx = vp56_rac_get_prob(&s->c, s->prob.p.tx8p[c]);
206 s->counts.tx8p[c][b->tx]++;
213 b->tx = FFMIN(max_tx, s->s.h.txfmmode);
216 if (s->s.h.keyframe || s->s.h.intraonly) {
217 uint8_t *a = &s->above_mode_ctx[col * 2];
218 uint8_t *l = &s->left_mode_ctx[(row7) << 1];
221 if (b->bs > BS_8x8) {
222 // FIXME the memory storage intermediates here aren't really
223 // necessary, they're just there to make the code slightly
226 a[0] = vp8_rac_get_tree(&s->c, ff_vp9_intramode_tree,
227 ff_vp9_default_kf_ymode_probs[a[0]][l[0]]);
228 if (b->bs != BS_8x4) {
229 b->mode[1] = vp8_rac_get_tree(&s->c, ff_vp9_intramode_tree,
230 ff_vp9_default_kf_ymode_probs[a[1]][b->mode[0]]);
236 b->mode[1] = b->mode[0];
238 if (b->bs != BS_4x8) {
240 a[0] = vp8_rac_get_tree(&s->c, ff_vp9_intramode_tree,
241 ff_vp9_default_kf_ymode_probs[a[0]][l[1]]);
242 if (b->bs != BS_8x4) {
243 b->mode[3] = vp8_rac_get_tree(&s->c, ff_vp9_intramode_tree,
244 ff_vp9_default_kf_ymode_probs[a[1]][b->mode[2]]);
250 b->mode[3] = b->mode[2];
253 b->mode[2] = b->mode[0];
256 b->mode[3] = b->mode[1];
259 b->mode[0] = vp8_rac_get_tree(&s->c, ff_vp9_intramode_tree,
260 ff_vp9_default_kf_ymode_probs[*a][*l]);
263 b->mode[1] = b->mode[0];
264 // FIXME this can probably be optimized
265 memset(a, b->mode[0], ff_vp9_bwh_tab[0][b->bs][0]);
266 memset(l, b->mode[0], ff_vp9_bwh_tab[0][b->bs][1]);
268 b->uvmode = vp8_rac_get_tree(&s->c, ff_vp9_intramode_tree,
269 ff_vp9_default_kf_uvmode_probs[b->mode[3]]);
270 } else if (b->intra) {
272 if (b->bs > BS_8x8) {
273 b->mode[0] = vp8_rac_get_tree(&s->c, ff_vp9_intramode_tree,
274 s->prob.p.y_mode[0]);
275 s->counts.y_mode[0][b->mode[0]]++;
276 if (b->bs != BS_8x4) {
277 b->mode[1] = vp8_rac_get_tree(&s->c, ff_vp9_intramode_tree,
278 s->prob.p.y_mode[0]);
279 s->counts.y_mode[0][b->mode[1]]++;
281 b->mode[1] = b->mode[0];
283 if (b->bs != BS_4x8) {
284 b->mode[2] = vp8_rac_get_tree(&s->c, ff_vp9_intramode_tree,
285 s->prob.p.y_mode[0]);
286 s->counts.y_mode[0][b->mode[2]]++;
287 if (b->bs != BS_8x4) {
288 b->mode[3] = vp8_rac_get_tree(&s->c, ff_vp9_intramode_tree,
289 s->prob.p.y_mode[0]);
290 s->counts.y_mode[0][b->mode[3]]++;
292 b->mode[3] = b->mode[2];
295 b->mode[2] = b->mode[0];
296 b->mode[3] = b->mode[1];
299 static const uint8_t size_group[10] = {
300 3, 3, 3, 3, 2, 2, 2, 1, 1, 1
302 int sz = size_group[b->bs];
304 b->mode[0] = vp8_rac_get_tree(&s->c, ff_vp9_intramode_tree,
305 s->prob.p.y_mode[sz]);
308 b->mode[3] = b->mode[0];
309 s->counts.y_mode[sz][b->mode[3]]++;
311 b->uvmode = vp8_rac_get_tree(&s->c, ff_vp9_intramode_tree,
312 s->prob.p.uv_mode[b->mode[3]]);
313 s->counts.uv_mode[b->mode[3]][b->uvmode]++;
315 static const uint8_t inter_mode_ctx_lut[14][14] = {
316 { 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5 },
317 { 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5 },
318 { 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5 },
319 { 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5 },
320 { 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5 },
321 { 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5 },
322 { 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5 },
323 { 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5 },
324 { 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5 },
325 { 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5 },
326 { 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 1, 3 },
327 { 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 1, 3 },
328 { 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 0, 3 },
329 { 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 4 },
332 if (s->s.h.segmentation.enabled && s->s.h.segmentation.feat[b->seg_id].ref_enabled) {
333 av_assert2(s->s.h.segmentation.feat[b->seg_id].ref_val != 0);
335 b->ref[0] = s->s.h.segmentation.feat[b->seg_id].ref_val - 1;
337 // read comp_pred flag
338 if (s->s.h.comppredmode != PRED_SWITCHABLE) {
339 b->comp = s->s.h.comppredmode == PRED_COMPREF;
343 // FIXME add intra as ref=0xff (or -1) to make these easier?
346 if (s->above_comp_ctx[col] && s->left_comp_ctx[row7]) {
348 } else if (s->above_comp_ctx[col]) {
349 c = 2 + (s->left_intra_ctx[row7] ||
350 s->left_ref_ctx[row7] == s->s.h.fixcompref);
351 } else if (s->left_comp_ctx[row7]) {
352 c = 2 + (s->above_intra_ctx[col] ||
353 s->above_ref_ctx[col] == s->s.h.fixcompref);
355 c = (!s->above_intra_ctx[col] &&
356 s->above_ref_ctx[col] == s->s.h.fixcompref) ^
357 (!s->left_intra_ctx[row7] &&
358 s->left_ref_ctx[row & 7] == s->s.h.fixcompref);
361 c = s->above_comp_ctx[col] ? 3 :
362 (!s->above_intra_ctx[col] && s->above_ref_ctx[col] == s->s.h.fixcompref);
365 c = s->left_comp_ctx[row7] ? 3 :
366 (!s->left_intra_ctx[row7] && s->left_ref_ctx[row7] == s->s.h.fixcompref);
370 b->comp = vp56_rac_get_prob(&s->c, s->prob.p.comp[c]);
371 s->counts.comp[c][b->comp]++;
374 // read actual references
375 // FIXME probably cache a few variables here to prevent repetitive
376 // memory accesses below
377 if (b->comp) { /* two references */
378 int fix_idx = s->s.h.signbias[s->s.h.fixcompref], var_idx = !fix_idx, c, bit;
380 b->ref[fix_idx] = s->s.h.fixcompref;
381 // FIXME can this codeblob be replaced by some sort of LUT?
384 if (s->above_intra_ctx[col]) {
385 if (s->left_intra_ctx[row7]) {
388 c = 1 + 2 * (s->left_ref_ctx[row7] != s->s.h.varcompref[1]);
390 } else if (s->left_intra_ctx[row7]) {
391 c = 1 + 2 * (s->above_ref_ctx[col] != s->s.h.varcompref[1]);
393 int refl = s->left_ref_ctx[row7], refa = s->above_ref_ctx[col];
395 if (refl == refa && refa == s->s.h.varcompref[1]) {
397 } else if (!s->left_comp_ctx[row7] && !s->above_comp_ctx[col]) {
398 if ((refa == s->s.h.fixcompref && refl == s->s.h.varcompref[0]) ||
399 (refl == s->s.h.fixcompref && refa == s->s.h.varcompref[0])) {
402 c = (refa == refl) ? 3 : 1;
404 } else if (!s->left_comp_ctx[row7]) {
405 if (refa == s->s.h.varcompref[1] && refl != s->s.h.varcompref[1]) {
408 c = (refl == s->s.h.varcompref[1] &&
409 refa != s->s.h.varcompref[1]) ? 2 : 4;
411 } else if (!s->above_comp_ctx[col]) {
412 if (refl == s->s.h.varcompref[1] && refa != s->s.h.varcompref[1]) {
415 c = (refa == s->s.h.varcompref[1] &&
416 refl != s->s.h.varcompref[1]) ? 2 : 4;
419 c = (refl == refa) ? 4 : 2;
423 if (s->above_intra_ctx[col]) {
425 } else if (s->above_comp_ctx[col]) {
426 c = 4 * (s->above_ref_ctx[col] != s->s.h.varcompref[1]);
428 c = 3 * (s->above_ref_ctx[col] != s->s.h.varcompref[1]);
432 if (s->left_intra_ctx[row7]) {
434 } else if (s->left_comp_ctx[row7]) {
435 c = 4 * (s->left_ref_ctx[row7] != s->s.h.varcompref[1]);
437 c = 3 * (s->left_ref_ctx[row7] != s->s.h.varcompref[1]);
442 bit = vp56_rac_get_prob(&s->c, s->prob.p.comp_ref[c]);
443 b->ref[var_idx] = s->s.h.varcompref[bit];
444 s->counts.comp_ref[c][bit]++;
445 } else /* single reference */ {
448 if (have_a && !s->above_intra_ctx[col]) {
449 if (have_l && !s->left_intra_ctx[row7]) {
450 if (s->left_comp_ctx[row7]) {
451 if (s->above_comp_ctx[col]) {
452 c = 1 + (!s->s.h.fixcompref || !s->left_ref_ctx[row7] ||
453 !s->above_ref_ctx[col]);
455 c = (3 * !s->above_ref_ctx[col]) +
456 (!s->s.h.fixcompref || !s->left_ref_ctx[row7]);
458 } else if (s->above_comp_ctx[col]) {
459 c = (3 * !s->left_ref_ctx[row7]) +
460 (!s->s.h.fixcompref || !s->above_ref_ctx[col]);
462 c = 2 * !s->left_ref_ctx[row7] + 2 * !s->above_ref_ctx[col];
464 } else if (s->above_intra_ctx[col]) {
466 } else if (s->above_comp_ctx[col]) {
467 c = 1 + (!s->s.h.fixcompref || !s->above_ref_ctx[col]);
469 c = 4 * (!s->above_ref_ctx[col]);
471 } else if (have_l && !s->left_intra_ctx[row7]) {
472 if (s->left_intra_ctx[row7]) {
474 } else if (s->left_comp_ctx[row7]) {
475 c = 1 + (!s->s.h.fixcompref || !s->left_ref_ctx[row7]);
477 c = 4 * (!s->left_ref_ctx[row7]);
482 bit = vp56_rac_get_prob(&s->c, s->prob.p.single_ref[c][0]);
483 s->counts.single_ref[c][0][bit]++;
487 // FIXME can this codeblob be replaced by some sort of LUT?
490 if (s->left_intra_ctx[row7]) {
491 if (s->above_intra_ctx[col]) {
493 } else if (s->above_comp_ctx[col]) {
494 c = 1 + 2 * (s->s.h.fixcompref == 1 ||
495 s->above_ref_ctx[col] == 1);
496 } else if (!s->above_ref_ctx[col]) {
499 c = 4 * (s->above_ref_ctx[col] == 1);
501 } else if (s->above_intra_ctx[col]) {
502 if (s->left_intra_ctx[row7]) {
504 } else if (s->left_comp_ctx[row7]) {
505 c = 1 + 2 * (s->s.h.fixcompref == 1 ||
506 s->left_ref_ctx[row7] == 1);
507 } else if (!s->left_ref_ctx[row7]) {
510 c = 4 * (s->left_ref_ctx[row7] == 1);
512 } else if (s->above_comp_ctx[col]) {
513 if (s->left_comp_ctx[row7]) {
514 if (s->left_ref_ctx[row7] == s->above_ref_ctx[col]) {
515 c = 3 * (s->s.h.fixcompref == 1 ||
516 s->left_ref_ctx[row7] == 1);
520 } else if (!s->left_ref_ctx[row7]) {
521 c = 1 + 2 * (s->s.h.fixcompref == 1 ||
522 s->above_ref_ctx[col] == 1);
524 c = 3 * (s->left_ref_ctx[row7] == 1) +
525 (s->s.h.fixcompref == 1 || s->above_ref_ctx[col] == 1);
527 } else if (s->left_comp_ctx[row7]) {
528 if (!s->above_ref_ctx[col]) {
529 c = 1 + 2 * (s->s.h.fixcompref == 1 ||
530 s->left_ref_ctx[row7] == 1);
532 c = 3 * (s->above_ref_ctx[col] == 1) +
533 (s->s.h.fixcompref == 1 || s->left_ref_ctx[row7] == 1);
535 } else if (!s->above_ref_ctx[col]) {
536 if (!s->left_ref_ctx[row7]) {
539 c = 4 * (s->left_ref_ctx[row7] == 1);
541 } else if (!s->left_ref_ctx[row7]) {
542 c = 4 * (s->above_ref_ctx[col] == 1);
544 c = 2 * (s->left_ref_ctx[row7] == 1) +
545 2 * (s->above_ref_ctx[col] == 1);
548 if (s->above_intra_ctx[col] ||
549 (!s->above_comp_ctx[col] && !s->above_ref_ctx[col])) {
551 } else if (s->above_comp_ctx[col]) {
552 c = 3 * (s->s.h.fixcompref == 1 || s->above_ref_ctx[col] == 1);
554 c = 4 * (s->above_ref_ctx[col] == 1);
558 if (s->left_intra_ctx[row7] ||
559 (!s->left_comp_ctx[row7] && !s->left_ref_ctx[row7])) {
561 } else if (s->left_comp_ctx[row7]) {
562 c = 3 * (s->s.h.fixcompref == 1 || s->left_ref_ctx[row7] == 1);
564 c = 4 * (s->left_ref_ctx[row7] == 1);
569 bit = vp56_rac_get_prob(&s->c, s->prob.p.single_ref[c][1]);
570 s->counts.single_ref[c][1][bit]++;
576 if (b->bs <= BS_8x8) {
577 if (s->s.h.segmentation.enabled && s->s.h.segmentation.feat[b->seg_id].skip_enabled) {
583 static const uint8_t off[10] = {
584 3, 0, 0, 1, 0, 0, 0, 0, 0, 0
587 // FIXME this needs to use the LUT tables from find_ref_mvs
588 // because not all are -1,0/0,-1
589 int c = inter_mode_ctx_lut[s->above_mode_ctx[col + off[b->bs]]]
590 [s->left_mode_ctx[row7 + off[b->bs]]];
592 b->mode[0] = vp8_rac_get_tree(&s->c, ff_vp9_inter_mode_tree,
593 s->prob.p.mv_mode[c]);
596 b->mode[3] = b->mode[0];
597 s->counts.mv_mode[c][b->mode[0] - 10]++;
601 if (s->s.h.filtermode == FILTER_SWITCHABLE) {
604 if (have_a && s->above_mode_ctx[col] >= NEARESTMV) {
605 if (have_l && s->left_mode_ctx[row7] >= NEARESTMV) {
606 c = s->above_filter_ctx[col] == s->left_filter_ctx[row7] ?
607 s->left_filter_ctx[row7] : 3;
609 c = s->above_filter_ctx[col];
611 } else if (have_l && s->left_mode_ctx[row7] >= NEARESTMV) {
612 c = s->left_filter_ctx[row7];
617 filter_id = vp8_rac_get_tree(&s->c, ff_vp9_filter_tree,
618 s->prob.p.filter[c]);
619 s->counts.filter[c][filter_id]++;
620 b->filter = ff_vp9_filter_lut[filter_id];
622 b->filter = s->s.h.filtermode;
625 if (b->bs > BS_8x8) {
626 int c = inter_mode_ctx_lut[s->above_mode_ctx[col]][s->left_mode_ctx[row7]];
628 b->mode[0] = vp8_rac_get_tree(&s->c, ff_vp9_inter_mode_tree,
629 s->prob.p.mv_mode[c]);
630 s->counts.mv_mode[c][b->mode[0] - 10]++;
631 ff_vp9_fill_mv(s, b->mv[0], b->mode[0], 0);
633 if (b->bs != BS_8x4) {
634 b->mode[1] = vp8_rac_get_tree(&s->c, ff_vp9_inter_mode_tree,
635 s->prob.p.mv_mode[c]);
636 s->counts.mv_mode[c][b->mode[1] - 10]++;
637 ff_vp9_fill_mv(s, b->mv[1], b->mode[1], 1);
639 b->mode[1] = b->mode[0];
640 AV_COPY32(&b->mv[1][0], &b->mv[0][0]);
641 AV_COPY32(&b->mv[1][1], &b->mv[0][1]);
644 if (b->bs != BS_4x8) {
645 b->mode[2] = vp8_rac_get_tree(&s->c, ff_vp9_inter_mode_tree,
646 s->prob.p.mv_mode[c]);
647 s->counts.mv_mode[c][b->mode[2] - 10]++;
648 ff_vp9_fill_mv(s, b->mv[2], b->mode[2], 2);
650 if (b->bs != BS_8x4) {
651 b->mode[3] = vp8_rac_get_tree(&s->c, ff_vp9_inter_mode_tree,
652 s->prob.p.mv_mode[c]);
653 s->counts.mv_mode[c][b->mode[3] - 10]++;
654 ff_vp9_fill_mv(s, b->mv[3], b->mode[3], 3);
656 b->mode[3] = b->mode[2];
657 AV_COPY32(&b->mv[3][0], &b->mv[2][0]);
658 AV_COPY32(&b->mv[3][1], &b->mv[2][1]);
661 b->mode[2] = b->mode[0];
662 AV_COPY32(&b->mv[2][0], &b->mv[0][0]);
663 AV_COPY32(&b->mv[2][1], &b->mv[0][1]);
664 b->mode[3] = b->mode[1];
665 AV_COPY32(&b->mv[3][0], &b->mv[1][0]);
666 AV_COPY32(&b->mv[3][1], &b->mv[1][1]);
669 ff_vp9_fill_mv(s, b->mv[0], b->mode[0], -1);
670 AV_COPY32(&b->mv[1][0], &b->mv[0][0]);
671 AV_COPY32(&b->mv[2][0], &b->mv[0][0]);
672 AV_COPY32(&b->mv[3][0], &b->mv[0][0]);
673 AV_COPY32(&b->mv[1][1], &b->mv[0][1]);
674 AV_COPY32(&b->mv[2][1], &b->mv[0][1]);
675 AV_COPY32(&b->mv[3][1], &b->mv[0][1]);
678 vref = b->ref[b->comp ? s->s.h.signbias[s->s.h.varcompref[0]] : 0];
682 #define SPLAT_CTX(var, val, n) \
684 case 1: var = val; break; \
685 case 2: AV_WN16A(&var, val * 0x0101); break; \
686 case 4: AV_WN32A(&var, val * 0x01010101); break; \
687 case 8: AV_WN64A(&var, val * 0x0101010101010101ULL); break; \
689 uint64_t v64 = val * 0x0101010101010101ULL; \
690 AV_WN64A( &var, v64); \
691 AV_WN64A(&((uint8_t *) &var)[8], v64); \
696 #define SPLAT_CTX(var, val, n) \
698 case 1: var = val; break; \
699 case 2: AV_WN16A(&var, val * 0x0101); break; \
700 case 4: AV_WN32A(&var, val * 0x01010101); break; \
702 uint32_t v32 = val * 0x01010101; \
703 AV_WN32A( &var, v32); \
704 AV_WN32A(&((uint8_t *) &var)[4], v32); \
708 uint32_t v32 = val * 0x01010101; \
709 AV_WN32A( &var, v32); \
710 AV_WN32A(&((uint8_t *) &var)[4], v32); \
711 AV_WN32A(&((uint8_t *) &var)[8], v32); \
712 AV_WN32A(&((uint8_t *) &var)[12], v32); \
718 switch (ff_vp9_bwh_tab[1][b->bs][0]) {
719 #define SET_CTXS(dir, off, n) \
721 SPLAT_CTX(s->dir##_skip_ctx[off], b->skip, n); \
722 SPLAT_CTX(s->dir##_txfm_ctx[off], b->tx, n); \
723 SPLAT_CTX(s->dir##_partition_ctx[off], dir##_ctx[b->bs], n); \
724 if (!s->s.h.keyframe && !s->s.h.intraonly) { \
725 SPLAT_CTX(s->dir##_intra_ctx[off], b->intra, n); \
726 SPLAT_CTX(s->dir##_comp_ctx[off], b->comp, n); \
727 SPLAT_CTX(s->dir##_mode_ctx[off], b->mode[3], n); \
729 SPLAT_CTX(s->dir##_ref_ctx[off], vref, n); \
730 if (s->s.h.filtermode == FILTER_SWITCHABLE) { \
731 SPLAT_CTX(s->dir##_filter_ctx[off], filter_id, n); \
736 case 1: SET_CTXS(above, col, 1); break;
737 case 2: SET_CTXS(above, col, 2); break;
738 case 4: SET_CTXS(above, col, 4); break;
739 case 8: SET_CTXS(above, col, 8); break;
741 switch (ff_vp9_bwh_tab[1][b->bs][1]) {
742 case 1: SET_CTXS(left, row7, 1); break;
743 case 2: SET_CTXS(left, row7, 2); break;
744 case 4: SET_CTXS(left, row7, 4); break;
745 case 8: SET_CTXS(left, row7, 8); break;
750 if (!s->s.h.keyframe && !s->s.h.intraonly) {
751 if (b->bs > BS_8x8) {
752 int mv0 = AV_RN32A(&b->mv[3][0]), mv1 = AV_RN32A(&b->mv[3][1]);
754 AV_COPY32(&s->left_mv_ctx[row7 * 2 + 0][0], &b->mv[1][0]);
755 AV_COPY32(&s->left_mv_ctx[row7 * 2 + 0][1], &b->mv[1][1]);
756 AV_WN32A(&s->left_mv_ctx[row7 * 2 + 1][0], mv0);
757 AV_WN32A(&s->left_mv_ctx[row7 * 2 + 1][1], mv1);
758 AV_COPY32(&s->above_mv_ctx[col * 2 + 0][0], &b->mv[2][0]);
759 AV_COPY32(&s->above_mv_ctx[col * 2 + 0][1], &b->mv[2][1]);
760 AV_WN32A(&s->above_mv_ctx[col * 2 + 1][0], mv0);
761 AV_WN32A(&s->above_mv_ctx[col * 2 + 1][1], mv1);
763 int n, mv0 = AV_RN32A(&b->mv[3][0]), mv1 = AV_RN32A(&b->mv[3][1]);
765 for (n = 0; n < w4 * 2; n++) {
766 AV_WN32A(&s->above_mv_ctx[col * 2 + n][0], mv0);
767 AV_WN32A(&s->above_mv_ctx[col * 2 + n][1], mv1);
769 for (n = 0; n < h4 * 2; n++) {
770 AV_WN32A(&s->left_mv_ctx[row7 * 2 + n][0], mv0);
771 AV_WN32A(&s->left_mv_ctx[row7 * 2 + n][1], mv1);
777 for (y = 0; y < h4; y++) {
778 int x, o = (row + y) * s->sb_cols * 8 + col;
779 VP9mvrefPair *mv = &s->s.frames[CUR_FRAME].mv[o];
782 for (x = 0; x < w4; x++) {
786 } else if (b->comp) {
787 for (x = 0; x < w4; x++) {
788 mv[x].ref[0] = b->ref[0];
789 mv[x].ref[1] = b->ref[1];
790 AV_COPY32(&mv[x].mv[0], &b->mv[3][0]);
791 AV_COPY32(&mv[x].mv[1], &b->mv[3][1]);
794 for (x = 0; x < w4; x++) {
795 mv[x].ref[0] = b->ref[0];
797 AV_COPY32(&mv[x].mv[0], &b->mv[3][0]);
803 // FIXME merge cnt/eob arguments?
804 static av_always_inline int
805 decode_coeffs_b_generic(VP56RangeCoder *c, int16_t *coef, int n_coeffs,
806 int is_tx32x32, int is8bitsperpixel, int bpp, unsigned (*cnt)[6][3],
807 unsigned (*eob)[6][2], uint8_t (*p)[6][11],
808 int nnz, const int16_t *scan, const int16_t (*nb)[2],
809 const int16_t *band_counts, const int16_t *qmul)
811 int i = 0, band = 0, band_left = band_counts[band];
812 uint8_t *tp = p[0][nnz];
818 val = vp56_rac_get_prob_branchy(c, tp[0]); // eob
819 eob[band][nnz][val]++;
824 if (!vp56_rac_get_prob_branchy(c, tp[1])) { // zero
827 band_left = band_counts[++band];
829 nnz = (1 + cache[nb[i][0]] + cache[nb[i][1]]) >> 1;
832 break; //invalid input; blocks should end with EOB
837 if (!vp56_rac_get_prob_branchy(c, tp[2])) { // one
842 // fill in p[3-10] (model fill) - only once per frame for each pos
844 memcpy(&tp[3], ff_vp9_model_pareto8[tp[2]], 8);
847 if (!vp56_rac_get_prob_branchy(c, tp[3])) { // 2, 3, 4
848 if (!vp56_rac_get_prob_branchy(c, tp[4])) {
851 val = 3 + vp56_rac_get_prob(c, tp[5]);
854 } else if (!vp56_rac_get_prob_branchy(c, tp[6])) { // cat1/2
856 if (!vp56_rac_get_prob_branchy(c, tp[7])) {
857 val = vp56_rac_get_prob(c, 159) + 5;
859 val = (vp56_rac_get_prob(c, 165) << 1) + 7;
860 val += vp56_rac_get_prob(c, 145);
864 if (!vp56_rac_get_prob_branchy(c, tp[8])) {
865 if (!vp56_rac_get_prob_branchy(c, tp[9])) {
866 val = 11 + (vp56_rac_get_prob(c, 173) << 2);
867 val += (vp56_rac_get_prob(c, 148) << 1);
868 val += vp56_rac_get_prob(c, 140);
870 val = 19 + (vp56_rac_get_prob(c, 176) << 3);
871 val += (vp56_rac_get_prob(c, 155) << 2);
872 val += (vp56_rac_get_prob(c, 140) << 1);
873 val += vp56_rac_get_prob(c, 135);
875 } else if (!vp56_rac_get_prob_branchy(c, tp[10])) {
876 val = (vp56_rac_get_prob(c, 180) << 4) + 35;
877 val += (vp56_rac_get_prob(c, 157) << 3);
878 val += (vp56_rac_get_prob(c, 141) << 2);
879 val += (vp56_rac_get_prob(c, 134) << 1);
880 val += vp56_rac_get_prob(c, 130);
883 if (!is8bitsperpixel) {
885 val += vp56_rac_get_prob(c, 255) << 17;
886 val += vp56_rac_get_prob(c, 255) << 16;
888 val += (vp56_rac_get_prob(c, 255) << 15);
889 val += (vp56_rac_get_prob(c, 255) << 14);
891 val += (vp56_rac_get_prob(c, 254) << 13);
892 val += (vp56_rac_get_prob(c, 254) << 12);
893 val += (vp56_rac_get_prob(c, 254) << 11);
894 val += (vp56_rac_get_prob(c, 252) << 10);
895 val += (vp56_rac_get_prob(c, 249) << 9);
896 val += (vp56_rac_get_prob(c, 243) << 8);
897 val += (vp56_rac_get_prob(c, 230) << 7);
898 val += (vp56_rac_get_prob(c, 196) << 6);
899 val += (vp56_rac_get_prob(c, 177) << 5);
900 val += (vp56_rac_get_prob(c, 153) << 4);
901 val += (vp56_rac_get_prob(c, 140) << 3);
902 val += (vp56_rac_get_prob(c, 133) << 2);
903 val += (vp56_rac_get_prob(c, 130) << 1);
904 val += vp56_rac_get_prob(c, 129);
908 #define STORE_COEF(c, i, v) do { \
909 if (is8bitsperpixel) { \
912 AV_WN32A(&c[i * 2], v); \
916 band_left = band_counts[++band];
918 STORE_COEF(coef, rc, ((vp8_rac_get(c) ? -val : val) * qmul[!!i]) / 2);
920 STORE_COEF(coef, rc, (vp8_rac_get(c) ? -val : val) * qmul[!!i]);
921 nnz = (1 + cache[nb[i][0]] + cache[nb[i][1]]) >> 1;
923 } while (++i < n_coeffs);
928 static int decode_coeffs_b_8bpp(VP9Context *s, int16_t *coef, int n_coeffs,
929 unsigned (*cnt)[6][3], unsigned (*eob)[6][2],
930 uint8_t (*p)[6][11], int nnz, const int16_t *scan,
931 const int16_t (*nb)[2], const int16_t *band_counts,
934 return decode_coeffs_b_generic(&s->c, coef, n_coeffs, 0, 1, 8, cnt, eob, p,
935 nnz, scan, nb, band_counts, qmul);
938 static int decode_coeffs_b32_8bpp(VP9Context *s, int16_t *coef, int n_coeffs,
939 unsigned (*cnt)[6][3], unsigned (*eob)[6][2],
940 uint8_t (*p)[6][11], int nnz, const int16_t *scan,
941 const int16_t (*nb)[2], const int16_t *band_counts,
944 return decode_coeffs_b_generic(&s->c, coef, n_coeffs, 1, 1, 8, cnt, eob, p,
945 nnz, scan, nb, band_counts, qmul);
948 static int decode_coeffs_b_16bpp(VP9Context *s, int16_t *coef, int n_coeffs,
949 unsigned (*cnt)[6][3], unsigned (*eob)[6][2],
950 uint8_t (*p)[6][11], int nnz, const int16_t *scan,
951 const int16_t (*nb)[2], const int16_t *band_counts,
954 return decode_coeffs_b_generic(&s->c, coef, n_coeffs, 0, 0, s->s.h.bpp, cnt, eob, p,
955 nnz, scan, nb, band_counts, qmul);
958 static int decode_coeffs_b32_16bpp(VP9Context *s, int16_t *coef, int n_coeffs,
959 unsigned (*cnt)[6][3], unsigned (*eob)[6][2],
960 uint8_t (*p)[6][11], int nnz, const int16_t *scan,
961 const int16_t (*nb)[2], const int16_t *band_counts,
964 return decode_coeffs_b_generic(&s->c, coef, n_coeffs, 1, 0, s->s.h.bpp, cnt, eob, p,
965 nnz, scan, nb, band_counts, qmul);
968 static av_always_inline int decode_coeffs(AVCodecContext *avctx, int is8bitsperpixel)
970 VP9Context *s = avctx->priv_data;
972 int row = s->row, col = s->col;
973 uint8_t (*p)[6][11] = s->prob.coef[b->tx][0 /* y */][!b->intra];
974 unsigned (*c)[6][3] = s->counts.coef[b->tx][0 /* y */][!b->intra];
975 unsigned (*e)[6][2] = s->counts.eob[b->tx][0 /* y */][!b->intra];
976 int w4 = ff_vp9_bwh_tab[1][b->bs][0] << 1, h4 = ff_vp9_bwh_tab[1][b->bs][1] << 1;
977 int end_x = FFMIN(2 * (s->cols - col), w4);
978 int end_y = FFMIN(2 * (s->rows - row), h4);
979 int n, pl, x, y, ret;
980 int16_t (*qmul)[2] = s->s.h.segmentation.feat[b->seg_id].qmul;
981 int tx = 4 * s->s.h.lossless + b->tx;
982 const int16_t * const *yscans = ff_vp9_scans[tx];
983 const int16_t (* const *ynbs)[2] = ff_vp9_scans_nb[tx];
984 const int16_t *uvscan = ff_vp9_scans[b->uvtx][DCT_DCT];
985 const int16_t (*uvnb)[2] = ff_vp9_scans_nb[b->uvtx][DCT_DCT];
986 uint8_t *a = &s->above_y_nnz_ctx[col * 2];
987 uint8_t *l = &s->left_y_nnz_ctx[(row & 7) << 1];
988 static const int16_t band_counts[4][8] = {
989 { 1, 2, 3, 4, 3, 16 - 13 },
990 { 1, 2, 3, 4, 11, 64 - 21 },
991 { 1, 2, 3, 4, 11, 256 - 21 },
992 { 1, 2, 3, 4, 11, 1024 - 21 },
994 const int16_t *y_band_counts = band_counts[b->tx];
995 const int16_t *uv_band_counts = band_counts[b->uvtx];
996 int bytesperpixel = is8bitsperpixel ? 1 : 2;
999 #define MERGE(la, end, step, rd) \
1000 for (n = 0; n < end; n += step) \
1001 la[n] = !!rd(&la[n])
1002 #define MERGE_CTX(step, rd) \
1004 MERGE(l, end_y, step, rd); \
1005 MERGE(a, end_x, step, rd); \
1008 #define DECODE_Y_COEF_LOOP(step, mode_index, v) \
1009 for (n = 0, y = 0; y < end_y; y += step) { \
1010 for (x = 0; x < end_x; x += step, n += step * step) { \
1011 enum TxfmType txtp = ff_vp9_intra_txfm_type[b->mode[mode_index]]; \
1012 ret = (is8bitsperpixel ? decode_coeffs_b##v##_8bpp : decode_coeffs_b##v##_16bpp) \
1013 (s, s->block + 16 * n * bytesperpixel, 16 * step * step, \
1014 c, e, p, a[x] + l[y], yscans[txtp], \
1015 ynbs[txtp], y_band_counts, qmul[0]); \
1016 a[x] = l[y] = !!ret; \
1017 total_coeff |= !!ret; \
1019 AV_WN16A(&s->eob[n], ret); \
1026 #define SPLAT(la, end, step, cond) \
1028 for (n = 1; n < end; n += step) \
1029 la[n] = la[n - 1]; \
1030 } else if (step == 4) { \
1032 for (n = 0; n < end; n += step) \
1033 AV_WN32A(&la[n], la[n] * 0x01010101); \
1035 for (n = 0; n < end; n += step) \
1036 memset(&la[n + 1], la[n], FFMIN(end - n - 1, 3)); \
1038 } else /* step == 8 */ { \
1040 if (HAVE_FAST_64BIT) { \
1041 for (n = 0; n < end; n += step) \
1042 AV_WN64A(&la[n], la[n] * 0x0101010101010101ULL); \
1044 for (n = 0; n < end; n += step) { \
1045 uint32_t v32 = la[n] * 0x01010101; \
1046 AV_WN32A(&la[n], v32); \
1047 AV_WN32A(&la[n + 4], v32); \
1051 for (n = 0; n < end; n += step) \
1052 memset(&la[n + 1], la[n], FFMIN(end - n - 1, 7)); \
1055 #define SPLAT_CTX(step) \
1057 SPLAT(a, end_x, step, end_x == w4); \
1058 SPLAT(l, end_y, step, end_y == h4); \
1064 DECODE_Y_COEF_LOOP(1, b->bs > BS_8x8 ? n : 0,);
1067 MERGE_CTX(2, AV_RN16A);
1068 DECODE_Y_COEF_LOOP(2, 0,);
1072 MERGE_CTX(4, AV_RN32A);
1073 DECODE_Y_COEF_LOOP(4, 0,);
1077 MERGE_CTX(8, AV_RN64A);
1078 DECODE_Y_COEF_LOOP(8, 0, 32);
1083 #define DECODE_UV_COEF_LOOP(step, v) \
1084 for (n = 0, y = 0; y < end_y; y += step) { \
1085 for (x = 0; x < end_x; x += step, n += step * step) { \
1086 ret = (is8bitsperpixel ? decode_coeffs_b##v##_8bpp : decode_coeffs_b##v##_16bpp) \
1087 (s, s->uvblock[pl] + 16 * n * bytesperpixel, \
1088 16 * step * step, c, e, p, a[x] + l[y], \
1089 uvscan, uvnb, uv_band_counts, qmul[1]); \
1090 a[x] = l[y] = !!ret; \
1091 total_coeff |= !!ret; \
1093 AV_WN16A(&s->uveob[pl][n], ret); \
1095 s->uveob[pl][n] = ret; \
1100 p = s->prob.coef[b->uvtx][1 /* uv */][!b->intra];
1101 c = s->counts.coef[b->uvtx][1 /* uv */][!b->intra];
1102 e = s->counts.eob[b->uvtx][1 /* uv */][!b->intra];
1107 for (pl = 0; pl < 2; pl++) {
1108 a = &s->above_uv_nnz_ctx[pl][col << !s->ss_h];
1109 l = &s->left_uv_nnz_ctx[pl][(row & 7) << !s->ss_v];
1112 DECODE_UV_COEF_LOOP(1,);
1115 MERGE_CTX(2, AV_RN16A);
1116 DECODE_UV_COEF_LOOP(2,);
1120 MERGE_CTX(4, AV_RN32A);
1121 DECODE_UV_COEF_LOOP(4,);
1125 MERGE_CTX(8, AV_RN64A);
1126 DECODE_UV_COEF_LOOP(8, 32);
1135 static int decode_coeffs_8bpp(AVCodecContext *avctx)
1137 return decode_coeffs(avctx, 1);
1140 static int decode_coeffs_16bpp(AVCodecContext *avctx)
1142 return decode_coeffs(avctx, 0);
1145 static av_always_inline void mask_edges(uint8_t (*mask)[8][4], int ss_h, int ss_v,
1146 int row_and_7, int col_and_7,
1147 int w, int h, int col_end, int row_end,
1148 enum TxfmMode tx, int skip_inter)
1150 static const unsigned wide_filter_col_mask[2] = { 0x11, 0x01 };
1151 static const unsigned wide_filter_row_mask[2] = { 0x03, 0x07 };
1153 // FIXME I'm pretty sure all loops can be replaced by a single LUT if
1154 // we make VP9Filter.mask uint64_t (i.e. row/col all single variable)
1155 // and make the LUT 5-indexed (bl, bp, is_uv, tx and row/col), and then
1156 // use row_and_7/col_and_7 as shifts (1*col_and_7+8*row_and_7)
1158 // the intended behaviour of the vp9 loopfilter is to work on 8-pixel
1159 // edges. This means that for UV, we work on two subsampled blocks at
1160 // a time, and we only use the topleft block's mode information to set
1161 // things like block strength. Thus, for any block size smaller than
1162 // 16x16, ignore the odd portion of the block.
1163 if (tx == TX_4X4 && (ss_v | ss_h)) {
1178 if (tx == TX_4X4 && !skip_inter) {
1179 int t = 1 << col_and_7, m_col = (t << w) - t, y;
1180 // on 32-px edges, use the 8-px wide loopfilter; else, use 4-px wide
1181 int m_row_8 = m_col & wide_filter_col_mask[ss_h], m_row_4 = m_col - m_row_8;
1183 for (y = row_and_7; y < h + row_and_7; y++) {
1184 int col_mask_id = 2 - !(y & wide_filter_row_mask[ss_v]);
1186 mask[0][y][1] |= m_row_8;
1187 mask[0][y][2] |= m_row_4;
1188 // for odd lines, if the odd col is not being filtered,
1189 // skip odd row also:
1196 // if a/c are even row/col and b/d are odd, and d is skipped,
1197 // e.g. right edge of size-66x66.webm, then skip b also (bug)
1198 if ((ss_h & ss_v) && (col_end & 1) && (y & 1)) {
1199 mask[1][y][col_mask_id] |= (t << (w - 1)) - t;
1201 mask[1][y][col_mask_id] |= m_col;
1204 mask[0][y][3] |= m_col;
1206 if (ss_h && (col_end & 1))
1207 mask[1][y][3] |= (t << (w - 1)) - t;
1209 mask[1][y][3] |= m_col;
1213 int y, t = 1 << col_and_7, m_col = (t << w) - t;
1216 int mask_id = (tx == TX_8X8);
1217 int l2 = tx + ss_h - 1, step1d;
1218 static const unsigned masks[4] = { 0xff, 0x55, 0x11, 0x01 };
1219 int m_row = m_col & masks[l2];
1221 // at odd UV col/row edges tx16/tx32 loopfilter edges, force
1222 // 8wd loopfilter to prevent going off the visible edge.
1223 if (ss_h && tx > TX_8X8 && (w ^ (w - 1)) == 1) {
1224 int m_row_16 = ((t << (w - 1)) - t) & masks[l2];
1225 int m_row_8 = m_row - m_row_16;
1227 for (y = row_and_7; y < h + row_and_7; y++) {
1228 mask[0][y][0] |= m_row_16;
1229 mask[0][y][1] |= m_row_8;
1232 for (y = row_and_7; y < h + row_and_7; y++)
1233 mask[0][y][mask_id] |= m_row;
1238 if (ss_v && tx > TX_8X8 && (h ^ (h - 1)) == 1) {
1239 for (y = row_and_7; y < h + row_and_7 - 1; y += step1d)
1240 mask[1][y][0] |= m_col;
1241 if (y - row_and_7 == h - 1)
1242 mask[1][y][1] |= m_col;
1244 for (y = row_and_7; y < h + row_and_7; y += step1d)
1245 mask[1][y][mask_id] |= m_col;
1247 } else if (tx != TX_4X4) {
1250 mask_id = (tx == TX_8X8) || (h == ss_v);
1251 mask[1][row_and_7][mask_id] |= m_col;
1252 mask_id = (tx == TX_8X8) || (w == ss_h);
1253 for (y = row_and_7; y < h + row_and_7; y++)
1254 mask[0][y][mask_id] |= t;
1256 int t8 = t & wide_filter_col_mask[ss_h], t4 = t - t8;
1258 for (y = row_and_7; y < h + row_and_7; y++) {
1259 mask[0][y][2] |= t4;
1260 mask[0][y][1] |= t8;
1262 mask[1][row_and_7][2 - !(row_and_7 & wide_filter_row_mask[ss_v])] |= m_col;
1267 void ff_vp9_decode_block(AVCodecContext *avctx, int row, int col,
1268 VP9Filter *lflvl, ptrdiff_t yoff, ptrdiff_t uvoff,
1269 enum BlockLevel bl, enum BlockPartition bp)
1271 VP9Context *s = avctx->priv_data;
1273 enum BlockSize bs = bl * 3 + bp;
1274 int bytesperpixel = s->bytesperpixel;
1275 int w4 = ff_vp9_bwh_tab[1][bs][0], h4 = ff_vp9_bwh_tab[1][bs][1], lvl;
1277 AVFrame *f = s->s.frames[CUR_FRAME].tf.f;
1284 s->min_mv.x = -(128 + col * 64);
1285 s->min_mv.y = -(128 + row * 64);
1286 s->max_mv.x = 128 + (s->cols - col - w4) * 64;
1287 s->max_mv.y = 128 + (s->rows - row - h4) * 64;
1294 b->uvtx = b->tx - ((s->ss_h && w4 * 2 == (1 << b->tx)) ||
1295 (s->ss_v && h4 * 2 == (1 << b->tx)));
1300 if (bytesperpixel == 1) {
1301 has_coeffs = decode_coeffs_8bpp(avctx);
1303 has_coeffs = decode_coeffs_16bpp(avctx);
1305 if (!has_coeffs && b->bs <= BS_8x8 && !b->intra) {
1307 memset(&s->above_skip_ctx[col], 1, w4);
1308 memset(&s->left_skip_ctx[s->row7], 1, h4);
1313 #define SPLAT_ZERO_CTX(v, n) \
1315 case 1: v = 0; break; \
1316 case 2: AV_ZERO16(&v); break; \
1317 case 4: AV_ZERO32(&v); break; \
1318 case 8: AV_ZERO64(&v); break; \
1319 case 16: AV_ZERO128(&v); break; \
1321 #define SPLAT_ZERO_YUV(dir, var, off, n, dir2) \
1323 SPLAT_ZERO_CTX(s->dir##_y_##var[off * 2], n * 2); \
1324 if (s->ss_##dir2) { \
1325 SPLAT_ZERO_CTX(s->dir##_uv_##var[0][off], n); \
1326 SPLAT_ZERO_CTX(s->dir##_uv_##var[1][off], n); \
1328 SPLAT_ZERO_CTX(s->dir##_uv_##var[0][off * 2], n * 2); \
1329 SPLAT_ZERO_CTX(s->dir##_uv_##var[1][off * 2], n * 2); \
1334 case 1: SPLAT_ZERO_YUV(above, nnz_ctx, col, 1, h); break;
1335 case 2: SPLAT_ZERO_YUV(above, nnz_ctx, col, 2, h); break;
1336 case 4: SPLAT_ZERO_YUV(above, nnz_ctx, col, 4, h); break;
1337 case 8: SPLAT_ZERO_YUV(above, nnz_ctx, col, 8, h); break;
1340 case 1: SPLAT_ZERO_YUV(left, nnz_ctx, row7, 1, v); break;
1341 case 2: SPLAT_ZERO_YUV(left, nnz_ctx, row7, 2, v); break;
1342 case 4: SPLAT_ZERO_YUV(left, nnz_ctx, row7, 4, v); break;
1343 case 8: SPLAT_ZERO_YUV(left, nnz_ctx, row7, 8, v); break;
1349 s->block += w4 * h4 * 64 * bytesperpixel;
1350 s->uvblock[0] += w4 * h4 * 64 * bytesperpixel >> (s->ss_h + s->ss_v);
1351 s->uvblock[1] += w4 * h4 * 64 * bytesperpixel >> (s->ss_h + s->ss_v);
1352 s->eob += 4 * w4 * h4;
1353 s->uveob[0] += 4 * w4 * h4 >> (s->ss_h + s->ss_v);
1354 s->uveob[1] += 4 * w4 * h4 >> (s->ss_h + s->ss_v);
1360 // emulated overhangs if the stride of the target buffer can't hold. This
1361 // makes it possible to support emu-edge and so on even if we have large block
1363 emu[0] = (col + w4) * 8 * bytesperpixel > f->linesize[0] ||
1364 (row + h4) > s->rows;
1365 emu[1] = ((col + w4) * 8 >> s->ss_h) * bytesperpixel > f->linesize[1] ||
1366 (row + h4) > s->rows;
1368 s->dst[0] = s->tmp_y;
1371 s->dst[0] = f->data[0] + yoff;
1372 s->y_stride = f->linesize[0];
1375 s->dst[1] = s->tmp_uv[0];
1376 s->dst[2] = s->tmp_uv[1];
1379 s->dst[1] = f->data[1] + uvoff;
1380 s->dst[2] = f->data[2] + uvoff;
1381 s->uv_stride = f->linesize[1];
1384 if (s->s.h.bpp > 8) {
1385 ff_vp9_intra_recon_16bpp(avctx, yoff, uvoff);
1387 ff_vp9_intra_recon_8bpp(avctx, yoff, uvoff);
1390 if (s->s.h.bpp > 8) {
1391 ff_vp9_inter_recon_16bpp(avctx);
1393 ff_vp9_inter_recon_8bpp(avctx);
1397 int w = FFMIN(s->cols - col, w4) * 8, h = FFMIN(s->rows - row, h4) * 8, n, o = 0;
1399 for (n = 0; o < w; n++) {
1404 s->dsp.mc[n][0][0][0][0](f->data[0] + yoff + o * bytesperpixel, f->linesize[0],
1405 s->tmp_y + o * bytesperpixel, 128, h, 0, 0);
1411 int w = FFMIN(s->cols - col, w4) * 8 >> s->ss_h;
1412 int h = FFMIN(s->rows - row, h4) * 8 >> s->ss_v, n, o = 0;
1414 for (n = s->ss_h; o < w; n++) {
1419 s->dsp.mc[n][0][0][0][0](f->data[1] + uvoff + o * bytesperpixel, f->linesize[1],
1420 s->tmp_uv[0] + o * bytesperpixel, 128, h, 0, 0);
1421 s->dsp.mc[n][0][0][0][0](f->data[2] + uvoff + o * bytesperpixel, f->linesize[2],
1422 s->tmp_uv[1] + o * bytesperpixel, 128, h, 0, 0);
1428 // pick filter level and find edges to apply filter to
1429 if (s->s.h.filter.level &&
1430 (lvl = s->s.h.segmentation.feat[b->seg_id].lflvl[b->intra ? 0 : b->ref[0] + 1]
1431 [b->mode[3] != ZEROMV]) > 0) {
1432 int x_end = FFMIN(s->cols - col, w4), y_end = FFMIN(s->rows - row, h4);
1433 int skip_inter = !b->intra && b->skip, col7 = s->col7, row7 = s->row7;
1435 setctx_2d(&lflvl->level[row7 * 8 + col7], w4, h4, 8, lvl);
1436 mask_edges(lflvl->mask[0], 0, 0, row7, col7, x_end, y_end, 0, 0, b->tx, skip_inter);
1437 if (s->ss_h || s->ss_v)
1438 mask_edges(lflvl->mask[1], s->ss_h, s->ss_v, row7, col7, x_end, y_end,
1439 s->cols & 1 && col + w4 >= s->cols ? s->cols & 7 : 0,
1440 s->rows & 1 && row + h4 >= s->rows ? s->rows & 7 : 0,
1441 b->uvtx, skip_inter);
1443 if (!s->filter_lut.lim_lut[lvl]) {
1444 int sharp = s->s.h.filter.sharpness;
1448 limit >>= (sharp + 3) >> 2;
1449 limit = FFMIN(limit, 9 - sharp);
1451 limit = FFMAX(limit, 1);
1453 s->filter_lut.lim_lut[lvl] = limit;
1454 s->filter_lut.mblim_lut[lvl] = 2 * (lvl + 2) + limit;
1460 s->block += w4 * h4 * 64 * bytesperpixel;
1461 s->uvblock[0] += w4 * h4 * 64 * bytesperpixel >> (s->ss_v + s->ss_h);
1462 s->uvblock[1] += w4 * h4 * 64 * bytesperpixel >> (s->ss_v + s->ss_h);
1463 s->eob += 4 * w4 * h4;
1464 s->uveob[0] += 4 * w4 * h4 >> (s->ss_v + s->ss_h);
1465 s->uveob[1] += 4 * w4 * h4 >> (s->ss_v + s->ss_h);